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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#140108#5411. 杏仁1kri#20 155ms191392kbC++141.8kb2023-08-15 08:51:142024-07-04 01:42:46

Judging History

你现在查看的是最新测评结果

  • [2024-07-04 01:42:46]
  • 评测
  • 测评结果：20
  • 用时：155ms
  • 内存：191392kb
查看
  • [2023-08-15 08:51:14]
  • 提交

answer

#include <iostream>
#include <cstdio>
#include <cstring>
#define mod 998244353
#define ll long long
using namespace std;
void inc(int &x,int y){
	x+=y;
	if (x>=mod)x-=mod;
	return;
}
int n,m,s,t,c[22][22];
int pow_2[10005];
int id[4200005];
int f[1048576][22][2];
int dfs(int S,int p,int o){
	if (f[id[S]][p][o]!=-1)return f[id[S]][p][o];
	ll ans=0;
	if (o==1)ans=c[p][t];
	int _o=1;
	for (int i=0;i<n;i++)
		if (!(S&(1<<i))){
			if (i==s||i==t)continue;
			ans+=1ll*c[p][i]*dfs(S|(1<<i),i,o|(_o));
			if (o==1)ans+=1ll*c[p][t]*c[s][i]*dfs(S|(1<<i),i,_o);
		}
		else _o=0;
	ans%=mod;
	return f[id[S]][p][o]=ans;
}
int g[1048576][22][2];
int val[22];
int q,x;
int main(){
	cin>>n>>m;
	cin>>s>>t,s--,t--;
	for (int i=1;i<=m;i++){
		int u,v;
		cin>>u>>v;
		u--,v--;
		c[u][v]++;
	}
	for (int i=0;i<(1<<n);i++){
		for (int j=n-1;j>=0;j--)
			if (j!=s&&j!=t)id[i]=(id[i]<<1)+((i>>j)&1);
	}
	pow_2[0]=1;
	for (int i=1;i<=m;i++)pow_2[i]=pow_2[i-1]*2%mod;
	c[s][t]=pow_2[c[s][t]]-1;
	memset(f,-1,sizeof(f));
	g[id[0]][s][1]=1;
	for (int S=0;S<(1<<n);S++){
		if ((S&(1<<s))||(S&(1<<t)))continue;
		for (int p=0;p<n;p++)
			for (int o=0;o<2;o++){
				int v=g[id[S]][p][o],_o=1;
				if (v==0)continue;
				for (int i=0;i<n;i++){
					if (!(S&(1<<i))){
						if (i==s||i==t)continue;
						int _v=1ll*c[p][i]*v%mod;
						inc(g[id[S|(1<<i)]][i][o|_o],_v);
						if (p==s)inc(val[i],1ll*_v*dfs(S|(1<<i),i,o|_o)%mod);
						if (o==1){
							int _v=1ll*c[p][t]*c[s][i]*v%mod;
							inc(g[id[S|(1<<i)]][i][_o],_v);
							inc(val[i],1ll*_v*dfs(S|(1<<i),i,_o)%mod);
							if (p==s)inc(val[t],1ll*_v*dfs(S|(1<<i),i,_o)%mod);
						}
					}
					else _o=0;
				}
			}
	}
	inc(val[t],c[s][t]);
	cin>>q;
	while(q--){
		cin>>x;
		x--;
		cout<<val[x]<<endl;
	}
	return 0;
}
Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 10
Accepted

Test #1:

score: 10
Accepted
time: 3ms
memory: 184096kb

input:

5 10
1 5
1 2
1 3
1 4
1 5
2 3
2 4
2 5
3 4
3 5
4 5
4
2
3
4
5

output:

20
14
10
15

result:

ok 4 lines

Test #2:

score: 0
Accepted
time: 8ms
memory: 185916kb

input:

2 0
1 2
0

output:

result:

ok 0 lines

Test #3:

score: 0
Accepted
time: 7ms
memory: 184276kb

input:

4 20
1 4
1 4
2 4
1 4
2 4
1 1
3 4
3 1
2 4
1 3
1 3
3 2
2 3
4 1
3 1
2 3
1 4
3 2
4 4
3 1
1 4
4
2
4
3
2

output:

0
225
224
0

result:

ok 4 lines

Test #4:

score: 0
Accepted
time: 8ms
memory: 185328kb

input:

5 20
1 5
1 5
1 2
4 2
5 3
1 1
1 4
4 5
5 1
1 3
2 5
2 4
3 1
5 2
4 3
4 3
3 4
5 1
4 2
4 5
3 4
5
3
4
2
5
5

output:

24
12
18
22
22

result:

ok 5 lines

Test #5:

score: 0
Accepted
time: 4ms
memory: 185904kb

input:

6 20
4 5
4 5
4 1
5 3
2 6
3 5
3 5
5 3
1 4
2 5
4 5
3 5
1 3
3 5
4 2
4 4
3 5
6 5
1 6
5 6
4 4
6
2
3
5
6
1
3

output:

52
0
60
0
68
0

result:

ok 6 lines

Test #6:

score: 0
Accepted
time: 3ms
memory: 184296kb

input:

11 20
3 1
3 1
3 7
9 1
4 9
7 4
9 11
6 11
9 5
3 5
3 7
8 9
1 7
10 1
6 11
11 5
3 7
8 10
7 1
9 7
11 8
10
2
10
7
8
11
1
6
9
5
1

output:

0
0
18
0
0
10
0
0
0
10

result:

ok 10 lines

Subtask #2:

score: 10
Accepted

Dependency #1:

100%
Accepted

Test #7:

score: 10
Accepted
time: 4ms
memory: 184788kb

input:

11 9728
6 10
6 10
9 10
5 10
6 4
4 10
1 6
8 10
3 8
1 10
9 7
5 3
6 4
6 5
11 6
9 6
6 6
3 10
2 4
2 11
6 10
6 2
6 5
10 6
2 10
11 2
9 10
1 10
9 10
7 8
3 1
8 3
3 7
9 11
2 9
6 4
10 11
8 4
2 10
11 10
6 3
6 10
6 11
1 11
6 9
7 11
8 3
9 7
2 1
11 2
6 2
4 1
3 10
6 6
6 11
3 2
10 10
7 10
7 10
6 6
6 8
4 3
4 10
4 2
1...

output:

18074853
107213401
341119309
102827400
474349010
797006791
628391650
336670841
867783896
401391226
341119309

result:

ok 11 lines

Test #8:

score: 0
Accepted
time: 8ms
memory: 185008kb

input:

11 9613
4 1
4 1
8 9
11 1
7 8
4 10
2 1
6 11
4 2
11 9
5 7
11 6
2 6
11 2
3 9
3 9
1 1
6 3
1 6
3 1
2 1
10 5
4 9
4 2
10 1
7 8
6 8
3 1
9 11
4 9
5 1
1 7
11 3
10 8
8 11
2 9
3 1
7 1
8 1
7 8
4 4
4 7
3 7
1 1
6 1
4 6
5 1
8 7
4 4
1 6
4 9
4 11
5 3
10 7
7 2
6 5
4 9
4 9
8 7
5 1
4 1
1 1
4 6
11 1
3 7
8 11
6 1
1 10
8 4...

output:

182705163
786446186
459586140
963615780
865915814
315502014
910204714
865915814
514046009
72155443
281775231

result:

ok 11 lines

Test #9:

score: 0
Accepted
time: 14ms
memory: 184572kb

input:

11 9669
10 6
10 6
10 7
10 9
2 6
4 6
10 6
10 6
11 1
3 9
4 10
1 8
9 11
3 9
3 5
1 6
11 7
4 6
2 11
3 6
6 7
3 5
8 11
6 11
3 10
10 9
8 2
2 8
11 3
10 7
3 6
10 9
3 6
5 7
11 8
8 6
7 11
4 2
4 3
3 5
6 1
10 1
11 4
10 11
3 8
6 8
10 7
3 2
1 6
3 9
3 2
6 3
9 2
10 2
5 8
7 6
11 3
10 3
8 4
2 3
10 5
10 8
9 4
4 3
5 6
10...

output:

149327198
149327198
621010244
313847170
72070176
640755787
768354631
327768688
860362353
839515336
716753550

result:

ok 11 lines

Test #10:

score: 0
Accepted
time: 12ms
memory: 185028kb

input:

11 9989
8 4
8 4
8 10
6 3
5 4
3 10
8 5
1 6
2 4
7 4
3 2
5 8
11 4
11 4
8 5
9 1
5 8
11 3
8 4
8 4
4 3
3 4
8 1
2 3
11 9
3 6
2 11
8 6
4 10
5 4
3 5
5 4
10 3
5 11
9 6
8 4
1 10
2 7
11 3
8 11
2 3
2 11
7 4
2 6
8 1
8 4
8 11
2 9
9 1
8 9
5 4
8 8
3 4
9 11
8 5
8 2
6 2
9 4
10 1
8 4
10 2
5 8
8 4
8 4
10 6
8 4
2 1
10 4
...

output:

925008018
925008018
417424703
233031232
592456114
905513142
507449485
987584281
67045289
93256542
679477325

result:

ok 11 lines

Subtask #3:

score: 0
Checker Judgement Failed

Dependency #2:

100%
Accepted

Test #11:

score: 15
Accepted
time: 155ms
memory: 191392kb

input:

17 9734
12 7
12 7
12 13
12 17
12 13
5 6
9 15
12 4
12 17
8 5
7 3
12 15
7 11
5 9
6 3
2 1
5 3
12 14
8 14
13 1
12 17
8 5
1 7
10 7
1 3
17 4
12 13
4 9
12 11
12 15
12 2
10 7
2 7
15 17
15 16
11 2
2 9
9 13
12 13
10 16
12 4
9 7
6 8
10 3
12 9
14 1
4 11
12 5
14 7
16 5
13 7
1 7
5 9
12 1
3 16
10 1
5 11
3 6
9 1
12...

output:

495528391
190001284
700736504
375686904
65816767
495528391
159308841
716930343
767343668
644562391
605875454
655781543
517152891
728480649
862738224
186485114
473518401

result:

ok 17 lines

Test #12:

score: 0
Accepted
time: 150ms
memory: 191212kb

input:

17 9672
15 6
15 6
4 12
15 3
6 4
8 6
15 1
1 6
15 3
6 3
9 10
15 6
8 12
1 5
13 6
1 10
13 1
3 6
17 10
15 6
14 6
15 15
15 12
6 17
7 17
15 10
10 14
10 1
9 16
9 6
9 3
10 3
15 12
10 15
11 17
8 6
15 6
14 16
13 7
15 5
1 6
6 8
5 3
13 6
4 16
12 6
15 10
2 13
9 6
10 12
11 6
4 16
15 17
8 6
15 13
12 6
2 6
16 6
14 8...

output:

279235714
30374151
24538748
679469233
229435792
155945081
450016612
514325705
338303999
985948696
888015758
183228636
644327192
941925587
178117228
380944360

result:

ok 16 lines

Test #13:

score: -15
Checker Judgement Failed

input:

17 9211
2 5
2 5
9 2
12 5
7 3
17 5
8 10
4 5
5 7
2 6
1 6
13 15
2 3
4 2
16 5
10 5
17 5
10 5
12 5
2 8
2 13
2 8
16 5
16 17
13 6
6 5
13 9
2 13
9 5
16 4
1 3
9 8
5 8
13 8
13 8
17 9
12 8
2 7
8 12
3 5
2 2
2 6
5 10
17 16
15 8
6 5
7 2
2 5
5 13
2 11
3 12
11 17
2 1
3 1
5 5
16 5
14 1
14 3
2 5
2 11
1 2
11 17
8 17
1...

output:

908804301
908804301
307393040
186849899
781252717
119888384
204862051
534656059
895145247
661847250
924518557
467036885
58336416
491807201
908827619
558794051
946875930

result:

Subtask #4:

score: 0
Runtime Error

Test #15:

score: 0
Runtime Error

input:

18 324
9 8
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
1 10
1 11
1 12
1 13
1 14
1 15
1 16
1 17
1 18
2 1
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
2 10
2 11
2 12
2 13
2 14
2 15
2 16
2 17
2 18
3 1
3 2
3 3
3 4
3 5
3 6
3 7
3 8
3 9
3 10
3 11
3 12
3 13
3 14
3 15
3 16
3 17
3 18
4 1
4 2
4 3
4 4
4 5
4 6
4 7
4 8
4 9
4 10
4 11
...

output:

result:

Subtask #5:

score: 0
Skipped

Dependency #3:

0%

Subtask #6:

score: 0
Time Limit Exceeded

Test #23:

score: 0
Time Limit Exceeded

input:

22 9384
9 19
9 19
3 18
9 17
9 19
15 19
14 17
9 18
9 14
9 18
9 19
16 19
3 10
9 2
2 1
21 10
1 19
4 3
19 3
9 16
18 21
9 22
9 8
13 8
2 7
4 16
9 12
15 12
3 19
19 10
16 10
14 19
19 16
14 19
1 4
11 5
5 13
3 19
9 6
17 22
4 18
1 13
2 18
19 16
18 17
12 22
21 3
5 11
18 7
14 19
8 19
9 20
16 19
22 19
18 12
9 19
...

output:

result:

Subtask #7:

score: 0
Skipped

Dependency #1:

100%
Accepted

Dependency #2:

100%
Accepted

Dependency #3:

0%
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